A man without aim is ship without rudder

One who is not properly initiated may present himself as a great devotee, but in fact he is sure to encounter many stumbling blocks on his path of progress toward spiritual realization, with the result that he must continue his term of material existence without relief. Such a helpless person is compared to a ship without a rudder, for such a ship can never reach its destination.

– Srila Prabhupada, Chaitanya Charitamrita Adi 1.35 purport

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