This is a meditation I recently used in a workshop on the Anahata chakra, to awaken to energy of Spring.

Sit in sukhasana. Place your hands on your knees in chin mudra , with palms facing up to open your awareness or palms facing down (jnana) to calm the mind.
Bring your awareness to the center of your chest. To draw your mind into meditation, start to repeat the sound Om with each exhalation. You can chant Om silently at your heart centre or out loud, letting the sound emanate from your chest.
Let the sound vibrate like a gong, where the sound of Om ripples in all directions. As you work with the sound, feel that each Om widens your heart like a great lake. As you stay with the sound, feel that your heart is being washed of any unnecessary gripping, tension, or feeling.
If a particular emotion arises and starts to overpower the meditation, allow it to be buoyed by the sea of sound. Look underneath, around, and inside that emotion and discover an insight that may arise from the spaciousness of your inquiry. Gradually, the sound of Om will dissolve into the calm spaciousness of the heart-the great container.
When you are ready, bring your hands together in Anjali Mudra (Salutation Seal) and complete your meditation with a moment of gratitude and reflection.