First incarnation of lord Vishnu which is called as Meen avtaar. Here meen meaning Pisces (Small Fishes). Life on earth is started from water in form of small creature. Meen Avtara of Lord Vishnu indicate to life in water.
Later, Second avtar of Lord Vishnu was incarnated which is known as Kurma Avtar. Here Kurma meaning is Tortoise. On ground of science, we know that totoise is an Amphibian creature. Who can survive in both conditions land as well as water. This avtar indicate that life is extended from water to land area in earth. During this period, water creatures gain ability to survive on land.
On later stage, Third Avtar of lord Vishnu was incarnated, called as Varah Avtar. Here Varah meaning in Sanskrit is Boar. We all know that Boar is a completely terristrial animal / land animal who lives in forest. Varah Avtar indicate that life extended completely to land and forest region.
Fourth Avtar of Lord Vishnu is Narasingha avtar. Narasingha mean Humanly lion. In other way, it can be said that Half human and half animal. This avtar of lord Vishnu indicate to intial stage of Human being. Who were living in jungle and hunting by hand nails and feeding on. Their bodies were looking hairy like lions. It indicate early stage of wildness of human being on earth.
Fifth avtar is vaman, here vaman means dwarf. Vaman avtar indicates dwarfism of human being on next stage. Vaman avtar was bramin which means Intellectually thinking power had increased that time and logical thinking had taken place after wildness.
Sixth avtar of Lord Vishnu is Parshuram. Here Parshu means a special kind of weapon. This incarnation indicates that in this period human being had gain well intellctual knowledge and logical thinking. This period human being were well know to operate weapon for hunting and protection. It can be said that this was the age of initial weapon uses. Till this avtar human beings were emotionless.
Seventh avtar is Ram avtar. Ram avtar indicate complete human being period. During this period human being had intellectually developed thierself to completness. Here, human being were having emotion, affection, love and sacrifices. Here, human being start to build up a strong society and leadershipness. During this Human being accepts the significance of social, poltical economical and educational values. That why Ram avatar is also called as Purushottam avtar mean completness of human being.
Eight avtar is Krishna avtar. It is something advance than previous avtar. This avtar indicate the Businnes mind set of human being and relationship to outgroup people. In this avtar, human being try to sustain the social ethos. Human being try to eliminate evilness from society and to discriminate about Unrighteous and righteous activity (Adharma and Dharma).
Ninth avtar is Buddha avatar. This avtar is spritual avtar. Who taught peoples spirituality. During this avatar, Human being are remain unhappy due to worldly worries and stress. Hence, Buddha avtar spreads knowledge to rise inner consciousness.
In future, tenth avtaar will be there. Who will be a advanced and super human being. Who will kill the evil powers. This tenth avtaar is called as Kalki avtar because this avtar shall.be happpened in Kaliyuga.
