Realizing Unlimited Happiness - Prabhupada 0024
690510 - Conversation - Columbus
Tapasya means voluntarily one has to accept some so-called suffering. That is required to make advancement in Kṛṣṇa consciousness—voluntarily acceptance, some so-called suffering. Tapaḥ divyam. That suffering is for transcendental realization. That is good. Tapo divyaṁ yena sattvaṁ śuddhyet (SB 5.5.1). Śuddhyet means your existence will be purified. And existence purified means you advance to realize unlimited happiness.