Answer:
The message of the poem "your laughter" by Pablo Neruda is that the character of the poem can not live without hearing the laughter of a specific person.
Explanation: look at the following phrase of the poem: "when your laughter enters , it rises to the sky seeking me". The laughter of such person is a blessing to the poem's author and he/she may be deprived from anything but no from this laughter, because it would be equivalent to death.