You may have feelings of happiness in meditation (dhyan, ધ્યાન) today but tomorrow you may experience opposite feelings. When there is opposite experience to your expectations, please do not get upset. That should be considered a passing phase and should be taken as a passing by cloud in the sky. We should be constantly aware that we do not get entangled in anything and it does not leave any deep impression on us. It is true sadhana when our attitude towards our life's goal keeps flowing uninterrupted in the day today karmas and actions, without getting sucked into the force of the flow of inner instruments (mind, forces of prana, ego etc), and there is expression of equanimity, balanced attitude, peace and joy in our works. With the grace of God this effort is made with heartfelt sincerity and awareness. You can consider the effort done in a right way if there is refusal of any expression of inner natural tendencies and there is no longer continuity of these tendencies if expressed; at the same time inner instruments are immersed in the ultimate goal of our sadhana with full attention. There is true beginning of the sadhana when inner instruments are not deeply involved in any kind of natural tendencies or if they get involved we develop the art (with continuity) of denying them the platform with awareness and maintaining the composure at all the time.
Pujya Shree Mota
Jivan Sanshodhan
Edition 6; Pages 49 - 50.