True welfare cannot be done without indulging in the soul or living in the mansion of soul. The soul can be the enjoyer of infinite happiness, peace, power, knowledge, perception and other infinite virtues only when it indulges in itself. Foundation of the building of soul is right perception which is endowed with eight qualities and eight limbs. That is endowed with four, twelve, sixteen & twenty five contemplates. That is devoid of twenty five faults and five atichaars. That is of three types by distinction of upsham etc. and two types by distinction of vyavhaar (practical) and nishchaya (real). The walls of that building of soul is five types of right knowledge but there are at the most only four types of knowledge that can be attained at the same time like four walls. That wall of right knowledge should be devoid of three defects and endowed with eight limbs. Then only there can be roof of right conduct. It is basically of two types-Saagaar (religion of householders) and angaar (religion of ascetics). Fasting and other external penance is like smoothness, cleaning or polishing etc. Intimate penance is like applying various types of colors in the interior. Self knowledge and meditation is to light various types of gem lamps. Meditation is like decoration of building of soul. Its fruition is the attainment of liberation. This stage is eternal rest in the building of soul. If you also want this then do the same effort.