Zen is a way to be conscious of the reality of a human being through the pure concentration. Moreover, it is a way of freedom to overcome all our bondage and is a special feature of Buddhism which coudn't be found in any other religions before. The term ¡®Zen' has been used as

¡®Seonna' in China by employing the pronunciation of Sanskrit ¡®dhyana' and by abbreviating it to ¡®Zen', and its meaning is ¡®meditate solemnly' or ¡®practice with wise attention'. To be in deep thought and to be in mental concentration are translated as ¡®concentration' or ¡®tranquility of mind' by combining the meaning and the pronunciation.

Deep thought and mental concentration cannot be exclusive possession of a specific denomination of Buddhism. Practice with wise attention of Indian Buddhism is a fundamental factor extending into Buddhism at large, and it is considered that wisdom is to be opened by this practice with wise attention. Wisdom is enlightened by the practice with wise attention and the practice with wise attention can be intensified nased on wisdom. Wisdom without practice with wise attention is faded to the sterile wisdom with discrimination, and the practice with attention without wisdom is hollow and of no purpose. Therfore, the practice with wise attention is compared to fuel, and it is true of wisdom and a lamp.