sei krsna-prapti-hetu trividha 'sadhana'
jnana, yoga, bhakti,--tinera prthak laksana
sei—those; krsna-prapti—of achieving the lotus feet of Krsna; hetu—causes; tri-vidha sadhana—the three kinds of execution; jnana—knowledge; yoga—mystic yoga practice; bhakti—and devotional service; tinera—of these three; prthak laksana—the symptoms are different.
"There are three ways to attain the lotus feet of the Absolute Truth, Krsna. There is the process of philosophical speculation, the practice of mystic yoga and the execution of devotional service. Each of these has its different characteristics.
Link to this page: http://prabhupadabooks.com/cc/madhya/24/79