Yes, you can attempt the mock tests for UPSC Law Optional subject in a calm and focused state of mind. Here's why:

1. Importance of a calm and focused state of mind:
Having a calm and focused state of mind is crucial while attempting mock tests for UPSC Law Optional subject. It helps in better concentration, comprehension, and retention of information. It allows you to approach the questions with a clear and logical mindset, enabling you to analyze and solve them effectively.

2. Reduced stress and anxiety:
When you are calm and focused, your stress and anxiety levels are significantly reduced. This positively impacts your performance during the mock tests as you are able to think more clearly and rationally. It helps in preventing panic or confusion, allowing you to make better decisions while answering the questions.

3. Enhanced understanding and retention:
A calm and focused state of mind promotes better understanding and retention of the subject matter. It enables you to absorb the information more effectively and recall it during the mock tests. This is essential for performing well and achieving a good score.

4. Improved time management:
Being in a calm and focused state of mind helps in managing your time efficiently during the mock tests. You are able to allocate the right amount of time to each question, avoiding unnecessary delays or rushing through them. This ensures that you can attempt all the questions with adequate attention and accuracy.

5. Increased accuracy and precision:
A calm and focused state of mind enables you to approach the questions with precision and accuracy. You can carefully analyze the options, eliminate incorrect choices, and arrive at the correct answer with confidence. This reduces the chances of making careless mistakes and improves your overall performance.

Conclusion:
In conclusion, attempting mock tests for UPSC Law Optional subject in a calm and focused state of mind is highly beneficial. It reduces stress, enhances understanding, improves time management, and increases accuracy. By practicing in such a state, you can effectively evaluate your knowledge and identify areas that require improvement. So, it is advisable to cultivate a calm and focused mindset before attempting the mock tests to optimize your performance and chances of success in the UPSC examinations.