Mahathera Ledi Sayadaw - Abhidhamma.com

67. The element of motion is the element of wind, that is, the power of supporting or resisting.
It is of many kinds, such as supportive, resistive, conveying, vibratory, diffusive, and so
on. From these four great Elements all other forms of matter are derived or are born. Or,
expressed in another way: All matter is a combination, in one proportion or another, of
these four elementary properties.
The Six Bases
Basis is that where consciousness generates, arises, develops, or that whereupon it
depends.
68. The eye-basis is the element of the sensorium within the eye- ball where consciousness of
sight is generated; and the consciousness of sight connotes the power of seeing various
kinds of colours, appearances, forms and shapes.
69. The ear-basis is the element of the sensorium within the organ of the ear where
consciousness of sound is generated, and the consciousness of sound connotes the power
of hearing various kinds of sound.
70. The nose-basis is the element of the sensorium within the nose organ where consciousness
of smell is generated, and the consciousness of smell connotes the power of smelling
different kinds of odours.
71. The tongue-basis is the element of the sensorium upon the surface of the tongue where
consciousness of taste is generated, and the consciousness of taste connotes the power of
tasting many kinds such as sweet, sour, and so forth.
72. The body-basis is the element of the sensorium locating itself by pervading the whole
body within and without from head to foot, where consciousness of touch is generated,
and the consciousness of touch connotes the power of feeling or sensing physical contacts.
73. The heart-basis a kind of very fine, bright, subtle matter within the organ of heart where
mind consciousness, comprising sixty- nine classes of the same in number is generated.
From these six bases all classes of consciousness are generated and arise.
The Two Bhavas or Sexes
Bhava means production or productive principle.
74. The Itthi-bhava or the female sex is a certain productive principle of matter which
produces several different kinds of female appearances and feminine characters.
75. The Pum-bhava or the male sex is a certain productive principle of matter which produces
several different kinds of male appearances and masculine characters.
The two sexes respectively locate themselves in the bodies of male and female, like the
body-basis pervading the entire frame, from the sole of the foot to the top of the head
within and without. Owing to their predominant features the distinction between
masculinity and feminity is readily discerned.