Ascendant, also known as the rising sign is a sign which is rising on the eastern horizon when you were born. This is also the first house in the astrological natal birth chart. Ascendant (Lagna) represents the presence of a person in a physical form.
The Ascendant symbolizes the personality; appearance; body-type; mask; environment; surrounding and birth circumstances. It is the part of ourselves that is most readily shown to (and seen by) the outside world.