real-acharya

"…But in devotion, there is no karma-bandha. As Kṛṣṇa is free from all reaction, similarly Kṛṣṇa's devotee who wants to satisfy Kṛṣṇa only, he is also free from all reaction. Therefore Kṛṣṇa says, ācāryaṁ māṁ vijānīyān nāva-manyeta karhicit
-[SB 11.17.27].

 "The ācārya is as good as I am," Kṛṣṇa says. Nāva-manyeta karhicit, "Never neglect him." Na martya-buddhyāsūyeta, "Never be envious of the ācārya, thinking him as anything of this material world." Ācāryaṁmāṁ vijānīyān
-[SB 11.17.27]. 

Therefore, ācārya's position is as good as Kṛṣṇa. Sākṣād-dharitvena samasta-śāstrair **. Ācārya is always cautious that he may not be subject to criticism. But who criticizes ācārya, he becomes immediately offender. Because he is playing the part of ācārya, he plays as far as possible. But sometimes for preaching work, he might have to do something which is not consistent. But if he is criticized, then that man who criticizes, he becomes… Of course, he must be ācārya, not a bogus. Ordinary man cannot transgress the laws, but Kṛṣṇa and His representative, ācārya, might be sometimes seen that he has transgressed. Therefore Kṛṣṇa says,ācāryaṁ māṁ vijānīyān
-[SB 11.17.27]

Vaiṣṇavera kriyā, mudrā vijñeha nā bujhaya. In the Caitanya-caritāmṛta,Vaiṣṇava ācārya, his activities is not understood even by the wisest man. Vaiṣṇavera kriyā, mudrā vijñeha nā bujhaya. Brahmaṇy upaśamāśrayam. Ācārya, guru, he is completely surrendered to Kṛṣṇa. He has taken the shelter of Kṛṣṇa, being completely freed from all material affection. Brahmaṇy upaśamāśrayam. Everything… Everyone has got some material desire to fulfill, but a guru or ācārya has no such business. That is the symptom of ācārya. He has no more any material business. Brahmaṇy upaśamāśrayam. He has finished all business of material satisfaction. That is the symptom of ācārya. And śābde pare ca niṣṇātam. And he has taken full bath in the ocean of transcendental (indistinct). Śābde pare ca niṣṇātaṁ brahmaṇy upaśamāśrayam. Tasmād guruṁ prapadyeta
-[SB11.3.21]

One should surrender to such spiritual master. Jijñāsuḥ śreya uttamam, when he is actually serious about inquiring the transcendental subject matter. Otherwise there is no need of accepting guru or ācārya. He has no business. If one is not interested in the transcendental subject matter …”    
-1972 Conversations : March, 1972