Spiritual life means understanding material life is illusion driven and temporary. Practitioners have to develop the requisite knowledge and understanding to distinguish between what is spiritual and what is material. Thus they have to cautiously keep away from material allurements. Lord in Bhagavad-Gita gives a nice example of a Tortoise. Tortoise when it sees external threat withdraws it’s limbs and head into its Shell and remains quiet and peaceful until the threat disappears. Likewise a spiritual practitioner should carefully withdraw his senses and also the mind from material allurements whenever they appear. However much one may feel confident but one must understand that Maya, the illusory energy of the Lord is very difficult to overcome as Krishna Himself States in Bhagavad-Gita. For the devotee the sadhana and association of pure devotees serve as a protective Shell. Without association the Tortoise like devotee might transform into a chameleon meaning changing taste and priority in the presence of slightest distraction. A weak practitioner might behave like a chameleon changing its colors. Or one may behave like an ostrich burying its head in the Sand keeping rest of its body open to attack. Material allurements are constantly present and there is not a time when it’s not going to be there. Therefore understand and apply Bhagavad-Gita in your life diligently.
One who is able to withdraw his senses from sense objects, as the tortoise draws its limbs within the shell, is firmly fixed in perfect consciousness.
This divine energy of Mine, consisting of the three modes of material nature, is difficult to overcome. But those who have surrendered unto Me can easily cross beyond it.