Hard Struggle for Happiness
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spiritual variegatedness which is so adamantly denied by the monist class of so-called  svāmīs .
As stated before, the Supreme Lord is  sac-cidānanda-vigraha , joyful by nature, and therefore He expands Himself by His different energies, parts, and differentiated and plenary portions. The Supreme Lord is the Absolute Truth, and He is one without a second, but He also includes His diverse energies, parts, and plenary portions which are simultaneously one with and different from Him. Because He is joyful by nature, He expands Himself in diverse ways, and the activities of these expansions are called His transcendental pastimes or His  līlā . These pastimes, however, are not blind and inert; they exhibit full sense, independence, and freedom of action and reaction. The complexities of the actions and the reactions of the diverse energies of the Absolute Truth constitute the subject matter of a vast science called the transcendental science of God, and the  Bhagavad-gītā  is the ABC or primary book of knowledge for students interested in that science. Every intelligent human being should become interested in this transcendental science; indeed, according to the opinions of the sages, human life is only meant for learning this science. The opening words of the  Vedānta-sūtra  proclaim: “Now is the time to inquire about Brahman.”
Human life by nature is full of suffering, and lower life forms are even more miserable. Any sane man with properly discriminating senses can understand that life in the material world is full of miseries and that no one is free from the actions and reactions