Angel Tattoo

Angel tattoos signify the relationship between heaven and earth. Traditionally, angels are viewed as intermediaries or messengers between divine beings (the god of your understanding) and humankind.
Other angel tattoo ideas might revolve around memorial or guardianship of our beloved. In this light, angels are called upon to protect and guide the souls of our loved ones (or ourselves) into the higher (heavenly) realms of life.
Angels are also used in tattoos to convey feelings of power, courage and victory. Throughout history, angels have represented tremendous determination and amazing skills in cosmic battle. Take Archangel Michael for example. This angel is the ultimate warrior, and his countenance can be used in an angel tattoo to express strength in the face of adversity particularly strength of a spiritual kind.

Butterfly Tattoo

The butterfly, throughout ages and cultures is an inspirational metaphor for complete metamorphosis. Because of its impressively intricate phases of change as it transforms itself from egg to caterpillar to chrysalis and finally to breathtakingly beautiful butterfly.
It's a long process to reach that kind of striking beauty, and that tells a story about the evolution of the soul. In sometimes strained and unquestionably odd phases, the human soul makes its progress in much the same way as the butterfly. Just as the butterfly looks almost nothing like it does when it was a caterpillar, the landscape of the human soul also goes through the same kind of graduation in evolution.
The butterfly also talks to us about impermanence and the consistently forward momentum of life. All things grow, evolve and change. It's this inevitable cycle of life the butterfly perfectly symbolizes.

OM Tattoo
Totality, Sustaining, Perpetuation, Oneness, Sacred Trinity, Sacred, Divine Expression, Indestructible word (truth), Creation, Evolution, Manifestation

The om symbol (a.k.a.: ohm, aum, omkar) is one such symbol There are theories that the core of existence vibrates at a set-point. From an abyss of nothingness there is uttered a divine call. It is as if the cosmic mouth opens and presses out a sweet song of creation across the void.
The om is expressed most commonly in Buddhism, Jainism and Hinduism.

The mantra "OM" is the name of God, the vibration of the Supreme. When taken letter by letter, A-U-M represents the divine energy (Shakti) united in its three elementary aspects: Bhrahma Shakti (creation), Vishnu Shakti (preservation) and Shiva Shakti (liberation, and/or destruction)

The om tattoo symbolism conveys a reverence for life, an honor for creation and an understanding of the divine motion of the Universe.

Lion Tattoo
Lion Tattoo Meaning in Christianity:

The lion is a symbol of God for its regal stature, and lends a visual icon to the concept of power and justice. Asian in the Chronicles of Narnia stands a spiritual godhead. In the symbol and seal known as the "Lion of Judah" attributed to the Israelite tribe of Judah the lion is symbolic of Christ.

Lion Tattoo Ideas from Buddhism:

Buddha and Krishna both are likened to the lion for their radiating energies, golden auras, and their security/wisdom/knowledge on a higher spiritual level.

Lion Tattoos in Astrology:

The lion is the zodiac (animal) representing the sign of Leo in astrology. It is ruled by the sun (more solar animal symbolism applies here). It's the fifth sign of the zodiac which lends an adventuresome, high-spirited energy. Intelligent, shrewd, exuberant and savvy in the ways of balance/justice, natural leaders are born under the sign of Leo.