Yes you can have.
See the following verse which i have used in this answer:
MadhuluvedhA yathA bhringah pushpAt pushAntaram vrajet | JyAna luvdha
stathA shishyah guro gurvantara vrajet ||
Just like the bee, desirous of honey, moves from one flower to the
other, a disciple, desirous of knowledge, can likewise move from one
Guru to another....
Quoting the verse from this answer:
Mantridoshascha rAjAnam jAyAdoshah patim yathA |
TathA prApnotyasandeham shishyapApam gurum priye ||
Just like a king gets affected by the sins committed by his ministers,
a husband gets affected by the sins committed by his wife, likewise,
without any doubt, O Beloved, a disciple's sins affect the Teacher
As per tantras, You can change until your purnadiksha (higher/highest initiation). I.e in the initial initiations it is allowed to change. But it is recommended to have a single guru. But today there is so much confusion among the masses regarding the shastra. One should be careful in selecting a guru or disciple.
ekaguru or aneka guru in kaula?
In the most ideal situation, a Guru himself should be self-realized. Because, the end-result of all forms of initiation (DikshA) is Mukti or liberation and one who himself is not self-realized can not liberate others.
For proofs, we can cite the following verses:
SarvAsAmeva dikshAnAm muktih phalamakhanditam | AvisheshAd bhavatyeshA
Did he actually did this as given the above paragraphs?
Now, this is a purely historical question and which i am not answering.
I will be answering only two of your questions that can be addressed from scriptures.
Suppose a Guru chants a mantra (his Ishta mantra in this case) loudly addressed to a mass gathering. Does that mean that all who gathered there ...
In Agamas DikshA or initiation is given utmost importance.
Mantras should be taken from a bonafide Guru only. If one chants mantra by obtaining it through some other sources (like books etc) then that is regarded as an offence.
For example, the KriyAsAra Tantram says:
Kalpe drishtA tu yo mantram japed gurumanAsritaha | SutanAsho bhavet
tasya phalam ...
Why is it required for it to be actually effective for the reciter?
The reason is - "the scriptures say so". That Mantra Japa is fruitful only if the Mantra is Guru-given and otherwise it is not.
For example, Lord Shiva says:
PAramparyAgamAmnAyam mantra AchArAdikam priye | Sarvam
gurumukhAllabdham saphalam syAnna chAnyathA ||
Yes, it is true that taking Dīkşā or initiation is mandatory. But to know the importance of Dīkşā, one must know the greatness of Guru.
Guru is embodiment of Mańtras, Śabdabrahmaman and consciousness; whatever words are uttered by Guru are to be considered as Guru Mańtra. The Mańtra that Guru whispers into the ear of disciple during Dīkşā pervades each and ...
I am answering only this part: What is Diksha? Definition of Diksha or initiation is described in Devi Bhagavata Purana, 12th Book, Chapter 7 as follows:
4-41. Nârâyana said :-- O Nârada! Listen. I am now telling you about the rules of initiation (Dîksâ) of the disciples, pure in heart. When they are initiated, they become entitled then and not before ...
As regards caste, sex etc there are no such restrictions. Everyone can be initiated. Even an Antyaja or Sankara or mixed caste person reserves the right to be initiated.
Shudra sankarajAti nAmAdi shuddhirvidhiyate | PAdodak pradAnAdyaih
kuryAt pApavimochanam ||
Primal purification is ordained for the Sudra and mixed-caste (Sankara-JAti); one is
Yes. Lord Dattatreya had 24 (not mantra gurus though)!
But it has some risks. If you step back and see what's the pros/cons of having 1 or more than 1 guru(s)
Pros of 1 Guru:
Single line of teaching
Single source of truth
Unambiguous source of instruction
No conflict with "other" schools of thought
Cons: All of the above (i.e., no cross-pollination of ...
Krishna answers this in Gita chapter 6, verses 37-45. The Lord says (Swami Nikhilananda translator):
Arjuna said: A man who is endowed with faith, but not with steadfastness, and whose mind has wandered away from yoga--what end does he gain, O Krishna, having failed to obtain perfection in yoga?
Fallen from both, unsupported, and bewildered in the ...
ATTRIBUTES OF THE DISCIPLE (SHISHYA LAKSHANA)
Just as tantra lays down great standards for the Guru and prescribes divine attributes, it also prescribes the attributes of a shiShya. The competent guru should first examine an aspirant for the existence of the prescribed attributes and only then proceed to initiate him/her. In the matters of choosing a ...
The story of Ramanuja being initiated into the Vaishnava Mantra after being turned down by Thirukkottiyar Nambi 17 times is well-known. Ramanuja never understood the reason for the refusal and was deeply disappointed for not able to receive the mantra.
It is said that Ramanuja was denied the sacred mantra because he was identifying himself as Ramanuja, but ...
According to the Tantras it is usually not ok for the husband to initiate his wife. But if the husband is Siddha Mantra (mastered a Mantra) then he can.
The Brihat TantrasArah quotes the following verses from the Rudra YAmala Tantram in this context:
Na patnim dikshayed bhartA na pitA dikshayeth sutAm | Na putrancha
Om is a Mantra, so chanting Om constitutes Mantra Japa. Other names for it are Pranava Mantra, TAraka Mantra etc.
Om represents the Adi Dvani (primordial sound) and is an Ekakshara Bija Mantra (mono-syllabled seed Mantra). It also represents the Brahman in the MAntrik level.
EkAkshare tathA kute traipure mantra nAyike | Shtri datte swapna
lavdhe cha ...
Darshanas are not the kind of Texts that are supposed to mention about DikshA.
MokshA is the epitome of spiritual realization and all sorts of spiritual advancement start with the Guru DikshA. This is something that is unanimously agreed upon.
So, it is more or less required.
But that does not mean that everyone who're initiated will get MokshA in that ...
The so called "bad Gurus" or the "incapable ones" are present in every age. But probably in today's time they are the majority.
Even the scriptures admit that there will always be Gurus of that nature.
Guravo vahabah santi shishya-vittApahArakAh | Durlabhohayam
gurur-devi shishya-dukkhapaharakah ||
There are plenty of Gurus who steal the disciple'...
It is not necessary that every time during DikshA, the Guru must speak the Mantra onto the disciple's right ear.
The rule, as to which ear, depends on the Varna of the disciple and the gender. The rules of DikshAs also can vary with SampradAyas, ParamparAs and Mantras themselves.
ViswaSAra Tantram, RAdhA Tantram etc , for example, mention speaking Mantra ...
In one of the comments, you said that Niradhara=without rituals and Sadhara=with rituals.
Then, Sadhara is clearly what is called the KriyAvati DikshA in KulArnava Tantram. Niradhara can be of three types as mentioned below.
In KulArnava Tantram's 14th Chapter, various types of initiations are described. Some of which are based on rituals where as the ...
This page gives a reasonably easy to follow and a scriptural method by which one , who does not have a Guru Diksha but desperately in need of one, can make Lord Dakshinamurthy his/her Guru.
As much as possible, one must try and obtain a guru, to guide with
mantras and properly initiate the devotee or sādhakā. But often, we
are faced with a ...
So can I initiate myself, if possible how?
See what Lord Shiva says on this:
VinA dikshAm na mokshah syAttaduktam shivashasane | SA cha na
syAdvinAchArjya mityAchArjyaparamparA ||
Without initiation (VinA dikshAm) there is no liberation- this has been laid
down by the Lord. And, initiation can not be there without a Teacher (VinA ...
Well if you read this from Srimad-Bhagavatam 8.24.49-50, you'll see that it is not needed
na yat-prasādāyuta-bhāga-leśam anye ca devā guravo janāḥ svayam kartuṁ
sametāḥ prabhavanti puṁsas tam īśvaraṁ tvāṁ śaraṇaṁ prapadye
Neither all the demigods, nor the so-called gurus nor all other
people, either independently or together, can offer ...
As discussed here ideally a Guru cannot be changed. Once you accept a person as your guide, it is permanent. You cannot change the guide from time to time. Logically too it makes sense because if you follow more than one guru then your mind is bound to get confused and you will end up achieving nothing. Basically Confused, Scared, Directionless. There is a ...
When we are on the path of self realization we know the first step
should be to get initiated/diksha from a guru, but my question is if
the person/soul was initiated in the previous birth and before
attaining salvation the person died and when he/she is born again will
initiation be required again or will that soul be directed on the
Gurus of many organisations across the globe nowadays initiate many
individuals collectively in a hall by the same beeja mantra
If this is the case then every person being "initiated" know what the other persons are initiated into. And, that is not right.
Because only the Guru and the disciple should know which is the initiated Mantra. So, this process ...
For this purpose we don't have Mantras but we do have Stotras.
From this page you can learn for example the Shiva Aparadha Kshamapana Stotram, which is asking for forgiveness from Lord Shiva for the faults the devotee might have committed.
Aadau karmaprasangaat, kalayati kalushham, maatrikukshau-sthitam
maam, Vin-muutraa-medhya-madhye, kathayati ...