Lord Krishna in Bhagavad Gita says to gain spiritual success in life we had to demolish ego in totality. There was no other alternative to this aspect of spirituality.
Demolition of ego means overpowering five senses and mind forever. Control over five senses comes when we reduced our emotions to zero, become emotionless forever. This gets necessitated as for a spiritual traveler the whole world becomes one large family.
To identify self with our real family, such a preposition no more exists. Exactly this happened with Siddhartha Gautama who by touching feet of wife and child thought he had successfully cut all bondages of karma. This was the biggest mistake committed by Siddhartha Gautama as we cannot quit family life midway. This was just not permitted by God. Karma is never burnt that way.
As detailed in Bhagavad Gita we are primarily a spirit, consciousness existing in our heart as soul atman. As a soul atman we manifest human body to cleanse self of dross impurities within. This became possible when we indulged in spirituality detailed in Bhagavad Gita.
For spiritual reasons, the soul atman could not carry emotions any longer. If we desire indulging in spirituality successfully we have to cut all bondages of earthly life, prime reason why in the entire history of mankind only two ladies till date succeeded in reaching god. As a lady cutting shackles of Moha (extreme emotional attachment) is next to impossible.
Becoming emotionless, indulging in spirituality truthfully takes time. We just cannot rush up path of spirituality. All emotions within died with time.
Attaching self to emotions is the biggest reason why people failed to indulge in spirituality world over. Instead of spirituality most indulged in religious practices (rituals) that never carried one towards god. State of self realization, god realization can be realized only by indulgence in spirituality as detailed in Bhagavad Gita, never religion (practice of rituals).