Knowledge is bliss -

Ignorance is a lack of knowledge and it is caused by delusion /Maya, we can perform mundane matters without putting much effort.  Spiritual knowledge is knowledge of self and knowledge about the supreme spirit which is the highest of knowledge that can be obtained by constant reading of scriptures that reveal eternal truth.   Nothing is permanent in this world.  The spiritual knowledge destroys miseries and sorrows forever; it destroys desires, selfishness and worldly bondage in the fire of knowledge.  Ignorance can bring only sorrows, and afflictions, an ignorant person cannot be happy in his life. There are four ways to rise above the darkness of ignorance, Jnana Yoga/knowledge, the practice of seeking knowledge, and we are often mistaken about the concept of ‘I’ as the physical body,  Jnana Yoga teaches ‘I’ as supreme soul, it builds up virtues like forbearance, non-violence,  and sense of ‘oneness in all’.  Karma Yoga/action, the practice of selfless act, it helps to get rid of expectation and desires which causes grief.  Bhakti Yoga/divine love, the practice of religious rites and recitation of sacred texts, develop the sense of love, peace, and happiness.  Raja Yoga/meditation, it develops concentration and bliss, physical and mental well-being as well.