To reach the Supreme Personality of Godhead, the highest goal, there are two processes:
- one process is by gradual development, and
- the other process is direct.
Devotional service in Krishna consciousness is the direct method, and the other method involves renouncing the fruits of one's activities.
Then one can come to the stage of knowledge, then to the stage of meditation, then to the stage of understanding the Supersoul, and then to the stage of the Supreme Personality of Godhead.
One may take either the step-by-step process or the direct path. The direct process is not possible for everyone; therefore the indirect process is also good.
It is, however, to be understood that the indirect process is not recommended for Arjuna, because he is already at the stage of loving devotional service to the Supreme Lord.
It is for others, who are not at this stage; for them the gradual process of renunciation, knowledge, meditation and realization of the Supersoul and Brahman should be followed.
———-Reference: Bhagavad-gita Chapter 12, Purport of Text 12