in outer view it may give very easy meaning like tortoise must not enter in side home.
but i hope it has deep message.
If u r a tamilian " AAMAI puguntha veedu urupudathu"
here AAMAI — à®•à®²à¯à®²à®¾à®®à¯ˆ
in one film comedy actor vivek touch this topic
Source : Yahoo answers.
The tortoise is a symbol of longevity, protection, support, wealth and prosperity. In Feng Shui, the tortoise signifies the protective hills of the North as well as the back support that ensures the house stays firm and strong. The tortoise was also the bearer of the magical Lo Shu square of numbers said to have been carried on its back and brought to the attention of Fu Hsi, the first legendary emperor of China to whom is attributed the authorship of the Book of Changes or I-Ching upon which all Feng Shui theory is based. The tortoise is said to conceal, within its body and the design motifs on its shell, all the secrets of heaven and earth. Place the tortoise in the North sector of your house for good life and good fortune!
Lord Vishnu as Koorma (Tortoise )avatharam … think that God has entered ur house … so relax and no worries…
will search for more answers and let u know if i find anything useful.