Karma-Bhakti-Jnana-Raja Yoga

Any of the yogas is limited on its own, but when combined, can lead to self-realization soon. A starting combination is a mixture of karma and bhakti by doing all actions as an expression of love for the universal. A modern day karma yogini master was Mother Teresa who called her work "love in action". or as we say, "work is worship"This combination can be further strenghthened by being aware of the nature of realization by being a silent observer totally detached while simultaneously performing actions out of love. This is karma-bhakti-jnana.When this exercise of observing while participating is perfected, dawns the mastery over the mind and senses that arises from perfect awareness, which is Raja Yoga.Thus, a combination of the yogas leads to self-realization.

Yoga

Yoga allows man, to slowly develop his highest potential, to reach the Absolute. It means letting the limited “I” merge into the great Universal Self, there where peace and unconditional joy reign, hence the term yoga meaning “union”.
The types of yoga include
1 Bhakti Yoga – Selfless Love, Devotion of the universal, absolute kind
2 Karma yoga – Action without regard to benefits/results
3 Raja yoga – Dimming and decreasing the priority of the senses/perception/mind to experience the absolute
4 Jnana yoga- Knowledge of the nature of reality and absolute truth

Among these, though Raja Yoga and Bhakti yoga are spoken of (by different sources) as the only means to self-realization. The only essential, true and effective path to self-realization, and to breaking free from the cycle of karma is karma yoga. If Bhakti or Raja yoga is performed without karma yoga (with a result or goal, even if the purest one in mind) it cannot lead to self-realization.
Self-realization, once attained in totality, means experiencing the absolute at every moment (being absolute reality) and using the mind/senses in action as a tool and not letting the mind/senses control action. It also means being one with the universal, and experiencing oneness with the universe, hence love for all. It also means knowledge of the self and its universal nature. Thus self-realization encompasses the various yogas, but it cannot be attained without karma yoga.