Answer
In the scriptures, the importance of wearing Tulsi kanthimala is described, and Tulsi Devi is glorified as supremely auspicious in all respects.
The scriptures explain that simply by seeing Tulsi, touching her, worshiping her, watering her, or caring for the Tulsi plant, one becomes benefited. Similarly, offering Tulsi leaves at the lotus feet of Krishna is considered extremely auspicious. Even remembering Tulsi, offering prayers to her, circumambulating her, or singing her glories are all highly purifying activities.
In this way, Tulsi is glorified in many different ways, and association with her is spiritually beneficial in every respect.
There is no strict restriction on who may wear Tulsi kanthimala. However, the significance of wearing Tulsi kanthimala is that one is publicly declaring oneself as a devotee of Krishna.
By wearing it, one is indicating, “I am a servant of Krishna. I may not yet be perfect, but I am on the path of spiritual life under the guidance of a bona fide spiritual master and in association with devotees. By following this process, I can gradually become purified and attain perfection.”
Thus, wearing Tulsi kanthimala is an expression of commitment to devotional life and a reminder of one’s spiritual identity.
However, one should understand that this is not merely an external ornament. If someone chooses to wear Tulsi kanthimala, they should also endeavor to give up sinful activities, chant the Hare Krishna maha-mantra regularly, and sincerely follow the instructions of the spiritual master.
In this way, one properly honors Tulsi Devi and prepares oneself for steady advancement in Krishna consciousness and ultimately for going back to Godhead.