This conception that when one's material concept of life is finished, [handwritten] the material vision of this also vanishes. Actually there is one energy of Krishna, which is spiritual. Material consciousness of life means forgetfulness of Krishna; when one is fully Krishna Consciousness, there is no more any material existence in the vision of such advanced devotee. We have to learn it step by step; just like we prepare prasadam, and ordinarily it is rice, dahl, and choppatties. But when it is offered to Krishna, it becomes prasadam. How ordinary rice, dahl, and choppatties turns into spiritual prasadam is to be understood by advancement of Krishna Consciousness, but actually anything in relation with Krishna is spiritual energy.
The mind does not dissolve, it changes its quality, or rather, it becomes purified. No, thoughts of feelings of love for Krishna is not ego-projected, or emotional, provided it is conformed by Spiritual Master.
Brahman realization is considered catastrophic in the sense if one does not make further progress to Krishna Consciousness. The less intelligent class of men give more stress on the Brahman realization and they take it as final, so this conclusion is a catastrophy. Because one has to make further progress for Paramatma realization, and further progress for God-realization. If one finalizes everything by Brahman realization, certainly that is a catastrophy.
Yes, without cleaning the mind, nobody can advance in spiritual understanding. And the chanting of Hare Krishna is the cleansing process of the mind. That is our motto.
When one realizes the Personality of Godhead, he automatically realizes the impersonal Brahman. When you understand what is the sun planet, automatically you understand what is the sunshine. Understanding of the sun planet, includes understanding of the sunshine, but understanding of the sunshine does not include understanding of the sun planet. So impersonal realization is always imperfect, whereas personal realization is always complete and perfect.