BG 2.41
व्यवसायात्मिका बुद्धिरेकेह कुरूनन्दन ।
बहुशाखा ह्यनन्ताश्च बुद्धयोऽव्यवसायिनाम् ॥ ४१ ॥
vyavasāyātmikā buddhir
ekeha kuru-nandana
bahu-śākhā hy anantāś ca
buddhayo 'vyavasāyinām
vyavasāyātmikā — resolute Kṛṣṇa consciousness; buddhiḥ — intelligence; ekā — only one; iha — in this world; kuru-nandana — O beloved child of the Kurus; bahu-śākhāḥ — various branches; hi — indeed; anantāḥ — unlimited; ca — also; buddhayaḥ — intelligence; avyavasāyinām — of those who are not in Kṛṣṇa consciousness.
Those who are on this path are resolute in purpose, and their aim is one. O beloved child of the Kurus, the intelligence of those who are irresolute is many-branched.
A strong faith in Kṛṣṇa consciousness that one should be elevated to the highest perfection of life is called vyavasāyātmikā intelligence. The Caitanya-caritāmṛta states:
Service in Kṛṣṇa consciousness is, however, best practiced under the able guidance of a spiritual master who is a bona fide representative of Kṛṣṇa, who knows the nature of the student and who can guide him to act in Kṛṣṇa consciousness. As such, to be well-versed in Kṛṣṇa consciousness one has to act firmly and obey the representative of Kṛṣṇa, and one should accept the instruction of the bona fide spiritual master as one's mission in life. Śrīla Viśvanātha Cakravartī Ṭhākur instructs us, in his famous prayers for the spiritual master, as follows:
The whole process, however, depends on perfect knowledge of the soul beyond the conception of the body—not theoretically but practically, when there is no longer chance for sense gratification manifested in fruitive activities. One who is not firmly fixed in mind is diverted by various types of fruitive acts.